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Radiant|Lab Grown|IGI

15.75ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG839643045

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG839643045

Diamond specifications and retailer prices

From $3,890 CAD
$2,785 USD
As of October 29, 2026
Save $15,052 CAD (79%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $18,942 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 15.75ct lab-grown radiant diamond

This 15.75ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839643045 or 839643045. Listed at 3 retailers as of October 29, 2026, with prices from $3,890 to $18,942, a $15,052 spread on the same certified stone. Brilliant Earth lists it at $18,942. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

15.75
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839643045
Dimensions17.82 × 12.37 × 8.17 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.82 mm12.37 mm15.75 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839643045
Side View
Table 68.0%Crown 47°Girdle: MediumPavilion 34.7°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $18,942 CAD|Low: $3,890 CAD|High: $18,942 CAD|Avg: $10,406 CAD
Brilliant Earth
Retailer 2
Retailer 3
October 31, 2026
Retailer 3$3,890 CAD
Retailer 2$5,463 CAD
Brilliant Earth$18,942 CAD

28 data points across 3 retailers

3 retailers$3,890 CAD to $18,942 CAD

A
Cheapest Retailer
-
$3,890 CAD
$2,785 USD
Final sale: no returns
A
Retailer 2
-
$5,463 CAD
£3,079 GBP
View
Most Expensive
B
Brilliant Earth
21602368A · Oct 29
$18,942 CAD
$13,560 USD
View
2 more retailers have this diamond
Prices start from $3,890 CADSave up to $15,052 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
15.75ct Radiant
$3,890 CAD